+
Observe the table :
\Horizontal line test:
\A function
has an inverse
if and only if no horizontal line intersects its graph of the function at most one point.
The function
has unique value for each and every value of
, hence the function
is a one-to-one function.
Domain of the function
is
.
Range of the function
is
.
If the function is one-to-one, then range of inverse function is domain of the function and domain of inverse function is range of the function.
\Domain of the inverse function
is
.
Range of the inverse function
is
.
Complete the table of inverse function
.
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The table of the inverse function
is \ \
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